| Answer | Crossword Clue |
|---|---|
| STEREO | Forerunner of quadraphonic |
| STEREO | Half of quadraphonic |
| STEREO | Quadraphonic predecessor |
| STEREO | Quadraphonic halved |
| STEREO | Less than quadraphonic |
| STEREO | Alternative to quadraphonic |
| RCA | Pioneer in quadraphonic records |
| RCA | Pioneer in quadraphonic music |
